Wood-feathering machine



June 23, 1925; 1,543,100 Y W. D., CRAIG v WOOD FEATHERING MACHINE FiledDec. 5, 1923 O a 0.10 f} 36 /7 /6 $0 I Z5 if ,4 T'TORNE y Patented June23, 1 925.

WILLIAM D. CRAIG, OF KANSAS CITY, MISSOURI.

' WOO'D-FEATI-IERING MACHINE.

Application filed December 5. 1923. Serial No. 6?8,658.

To all 2.07tirtii1216tg concern Be it known that I, W'KLLIAM .D. CRAIG,

citizen of the United States, residing at Kansas City, in the county ofJackson and State of Missouri, have invented certain new and usefulImprovements in V0od-lieathering Machines; and I do declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to the figures of reference marked thereon, which form a part ofthis specification.

This invention relates to a machine for producing a wood product,intended to be used as a filling medium in packing, upholstering and thelike and it is particularly designed to produce a prodnctsnch as is disclosed in my United States Patent 860,853 of July 23, 1907, theconstruction being such that there are certain novel advantages andimprovements over my United States Patent #848,8841 of April 2, 1907.

The invention consists in certain novel parts and combination of parts,all of which will be specifically described hereinafter,

reference being had to the accompanying drawings, in which- Fig.1 is afront elevational view of a wood shaving machine constructed inaccordance with my invention;

Fig. 2 is a view partly in side elevation and partly in section of themachine, and

Fig. 3 is a detailed view of one of the work frame stops.

Referring now to the drawings by nnmerals of reference- 1 designates aframe having standards 2 and 3, each carrying a forwardly projectingupwardly curved arm 4: and a rearwardly projecting upwardly curved arm5, the arms 4-4 and 55 supporting shafts as will be presently explained.Mounted in bearings 6 and 7 on the frame 1 is a'drive'shaft 8, driven byany suitable power, for example by a motor belt 9. 7

At the opposite end of the shaft 8 is a disk 10 having radial slots 11in which are mounted shaving knives 12. The periphery of the diskis-enclosed bya-housing 13 com-.

mnnicating with a conduit 14; through which air may pass to provide apneumatic conveyor for carrying away the shavings to a suitablepointwhere they may be collected.

Mounted in the arms is a counter-shaft 15 carrying a pulley 16 aboutwhich is a belt 17 driven by a pulley 18 on the shaft 8. Thecounter-shaft 15 carries a pulley 19 which drives a belt 20 passingaround the pulley 21 on the shaft 22 mounted in the arms l l on thestandards 2 and 3. The shaft 22 carries a pulley 23 which drives a belt2% communicating motion to a stub shaft 25 through the medium of thepulley 26. The stub shaft 25 is mounted in the arm 27 of a swingingframe 28 loosely mounted on the shaft 22 and adapted to be moved by. thehandle29. The swinging frame 28 carries an arm 30 in which is a tailpiece 31 aligning with the shaft25 so that the work or block 32 maybesecured between the ends of the shafts 25 and 31, it being observed.

by reference to Fig. 1 that the shaft 25 carries tines 33 which may beforced'into the end of the block 32 so that the block .32 will turn withthe shaft. The shaft 31, including its clamp 34 and the lever 3 1 issnbstantially like a tail block mechanism ofau ordinary turning machine.The swinging frame 28 is adapted to beheld outwardly by a latch bar 35which is provided with a notch 36 to engage a rib 37 on the frame sothat the frame will beheld in such a position to permit the introductionof the block or work 32. The block 32 of wood is pref-T erably round orsubstantially so whenvit is inserted between the members '81 and 25. andwhen the block is being inserted it is desirable that the shaft 25 isnot turned, so I have provided means for preventing this.

By reference to Fig. 1, it will be seen that the bracket 38 on thestandard 3 carries a cam arm or finger 39 on which the arm 10 of anelbow lever is adapted to ride. The

elbow lever is pivoted at 41 on the arm 27 and it is connected to a link12 in turn connected to a clutch lever 43 to operate the cone clutch.14: to separate the two members of the clutch on the shaft 22 but whenthe frame 28 swings inwardly the elbow lever will be out of contact withthe'finger 39 so that the spring 45 can move the cone ist intoengagement with the clutch member 46 to connect the two aligning membersof the shaft together.

The inward swinging movementof the frame 28 will be limited by the stopfingers 47 and 48 so that when the block has been acted upon by theknives 12 to reduce its diameter to a minimum, the frame will stop I amenabled to provide a large amount of on its inward swinging movement,this being desirable in order to prevent the knives from contacting withthe metal parts of the machine. The frame 28 is urged inwardly by a dashpot or liquid actuated piston 49 in the cylinder 50 containing a liquid51. The piston is provided with a loop 52 to which is connected a strapor cable 53 on the segment 54 carried by tiie sha-it on which the latchis mounted. There is another segment 56 on shaft, connected to the frameby a strap or flexible connection 57. The piston 49 has a center openingadapted to be opened when the piston is moved in one direction by a flapvalve 59 having a central opening (30.

The frame 2 is suspended on sleeves 61 and 62 in boxes in the standards2 and 3 and the shaft 22 is journaled in the sleeves 61 and 62 so thatthe shat't 22 need not carry the weight of the frame 28.

When the swingingtraine 28 is pulled outwardly the piston will beraised, causing the flap valve to open and permitting it to easily passthrough the liquid 51 in which it is sul'nnerged, then the latch can becaused to engage the work frame while the blocks are being removed orapplied. Then the latch is released and the piston will. tend to drop bygravity toward the bottom of the cylinder 50. Since the piston issubmerged in the dash pot or cylinder 50, the work will be urged againstthe knives with a steady pull, eliminating liability of the jerky motionwhich occurs with some kinds of wood where a weight only is used. As aresult a better product is provided. It is to be understood of coursethat the knife carrier or disk 10 is driven at a very rapid speed andthat the work is constantly rotating as the knives are operating uponit. Therefore shavings in a minimum space of time and by usingmy machinea product is provided which is soft and pliable and which has markedadvantages over the product commonly known as excelsior for packing orfor stuiiing mattresses or the like and wnile I have specificallydescribed in detail the preferred construction of my invention, 1. donot wish to be limited to the exact con struction as shown but I reservethe right to make such changes in form, proportion and minor details ofconstruction as come within the scope of the appended claims.

What I claim and desire'to secure by Let ters-Patent is: r

1. In a machine of the class described, a frame, a rotatable diskcarried by the frame having knives radially disposed therein, standardson the frame, a'shaft carried by the standards, segments on the shaft. a

s 'inging work holding carriage movable toward and away 'tromthe disk, adash pot, a piston in the dash pot, a flexible connec tion between thepiston and one of the seg ments and a flexible connection between thecarriage and the otherseginent and means for causing rotative movementof the work.

2. In a machine of the class described, a work carriage feed comprisinga carriage traine pivoted at its upper end and having inward swingingmovement, a cylinder, a pistol! in the cylinder having a centralopening, a liquid in the cylinder, completely subn'ierging the piston, ashaft, a segment on the shaft, a flexible connection between thecarriage and the segment. another segment on the shaft and anotherflexible connection between it and the piston.

In testimony whereof I a tiix my signature.

l/VILLIAM D. CRAIG.

